367 



Nucleus 



isthmi, 261 

 lentiformis, ;^;^;^, 166 

 magnocellularis tecti, 148, 73, 



of posterior commissure, 265, 



132 

 of fasc. long, medialis, 196, 270, 



134 



olfactorius lateralis, 300, 99, 



145-150 

 olfactorius medialis, 299, 10 1, 



147, 148, 150 

 praeopticus, 297, 304, 145, 149, 



150 

 praetectalis, 266 

 rotundus, 281 

 ruber, 243, 246 

 tecti, 247, 126 

 thaeniae, 183, 296, 300, 303 

 ventralis thalami, 258, 128 

 Oculomotor nerve, see N. oculomo- 



torius 

 Olfactory apparatus 



bulb, 28, 117, 293, 298, 302, 305, 



316, 2, 7, 12, 94-98 

 centers, 182, 292, 94-98, 145- 



170 

 decussation, 181, 185, 295, 304, 



334, loi, 145, 148 

 epithelium, 31, 61, 176, 34 

 glomerulus, 177, 94-97 

 granule cells, 181, 95, 96 

 lobe, 182, 296-307, 316, 12, 99, 



145-150 

 mitral cells, 178, 95 

 nerve, see N. olfactorius 

 relation to gustatory apparatus, 



188 

 relation to mouth, 176, 28, 37 

 Olive, 224 

 Operculum, cutaneous nerve supply, 



107, 63 

 Optic centers, 147, 261, 73, 74, 128, 

 130, 131, 141 

 prosencephalization, 264 

 see also visual apparatus. 

 Optic lobes, 24, 147, 254-261, 2, 7, 



12, 73, 74 

 Optic nerves, see Tr. opticus 

 Optic thalami, 25, 44, 246, 258-265, 



128, 141 

 Optic tract, see Tr. opticus 



Optic ventricle, 254, 127, 134 

 Optic vesicle, 44, 143, 150, 18-22, 75 

 Pallial tract, seeTr. olfacto-hypothala- 



micus lateralis 

 PalHum, see archipallium and neo- 

 pallium, 

 of bony fishes, 304, 147, 151 

 Paraphysis, 30, 312, 11, 36, 150, 



152, 153 

 Parietal eyes, 27, 102, 152, 11, 12, 



19, 36, 76 

 Paraterminal bodies, 306, 163 

 Pathways of impulses, 84, 92, 220 

 Peripheral nerves 



development of, 49, 13-16, 26- 



33 



Pineal eyes, 27, 102, 152, 11, 12, 19, 



36, 76 

 Pit organs, 58, 124 

 Pituitary body, 27 

 Placodes 



dorso-Iateral, 58, 28, 33 

 epibranchial, 55, 28, 31 

 Plexuses 



in palate, 42, 43 

 of Auerbach, 206 

 of Meissner, 206 

 Polarity 



of nervous system, 81 

 of neurones, 77, 39 

 Pons, 24, 224, 243, 245 

 Posterior commissure, 25, 265, 59, 



132, 135, 145 

 Preauditory pit, 59 

 Precommissural body, 317, 330, 157- 



169 

 Protopterus, 106, 288 

 Psalterium, 313, 315, 317-324. 334- 

 150, 152, 155, 158-163, 

 167, 168 

 Pulvinar, 261 

 Purkinje cells, 133-137, 239, 67, 68, 



121 

 Pyramidal tract, 349 

 Pyriform lobe, 317, 323, ss3^ 159, 

 160, 162, 165, 166, 167, 

 169 

 Rami communicantes, 14, 156, 207, 

 45, 77, 108 

 relation to N. spinalis access., 207 

 Ramus buccalis, 21, 59, 130, 51, 62, 



63, 79 



hyoideus, 22, 58, 79 



